Bobbin and cop builder for yarn-winding machines



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- I 'T.-J.. MURDOOK.'

BOBBIN AND GOP BUILDER FOR YARN WINDING' MACHINES.

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T. J. MURDOGK. BOBBIN AND GOP BUILDER FOR YARN'WINDING MACHINES.

Patented Nov. 27,1888.

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' UNI ED STATES PATENT FFICE.

THOMAS J. MURDOCK, OF LAVRENOE, MASSACHUSETTS.

BOBBIN AND COP BUILDER FOR YARN-WlNDlNG MACHINES.

SPECIFICATION forming part of Letters Patent No. 393,717, dated November 27, 1888.

App ication filed April 16, 1888. Serial No. 270,817.

To all whom it may concern:

Beit known that I, THOMAS J. MURDOOK, a citizen of the United States, residing at Lawrence, inthe county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Bobbin and Cop Builders for Yarn-Winding Machines; and I do hereby declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilledin the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention relates to bobbin and cop builders for yarn-winding machines, whereby the yarn,passing abouta rapidly continuouslyrevolving spindle or series of spindles set in a ,frame, is caused to traverse lengthwise of the cops in process of building, the traverses of the yarn constantly varying in length to give the requisite and proper shape to said cop when the latter is filled or completely built.

. My invention relates to mechanism by which the traverses of the yarn-guide wire to control the lay or wind of the thread are so controlled that my bobbin-winder is equally well adapted to build or fillcops, paper shells, and bobbins formed either with or without a cone-head, so called. Furthermore, it will wind from bobbins, small or large spools, or

7 from beamsin fact, is suitable to wind any kind of a thread which requires to be' transferred or rewound from one article containing it to another. Moreover, by the adjustment of the co-operating component parts, this machine is capable of forming the cone-head of thread, and thus the cone-head upon the bobbin may be dispensed with.

My invention consists in certain devices and the construction and combination thereof, as hereinafter more particularly set forth and claimed, having for their purpose the regulation of the position of the thread as it passes about the bobbin, and also the amount of thread laid on any part of said bobbin.

The drawings represent in Figure l a side elevation and in Fig. 2 a plan of a machine for building and winding bobbins and embodying my invention. Fig. 3 is an end view of the same, also showing the connection of the taller- (No model.)

arm with the suspensory rod. Fig. 4 is an enlarged side view of the mechanism for operating the feed to produce end traverses of the builder-shoes. Fig. 5 is a modified form of the cam-plate on the rotating wheel oscillating the lever which actuates the faller-arm.

In said drawings, A A represent two similarly-shaped builder-shoes adapted to reciprocate in guides formed in the castings B B, secured to the floor. Said builder-shoes are united by a rod, a, and constructed with lateral walls, the upper edges of which in profile are shaped and sloped to control the vertical drop of the rail 0, which rests and is supported at each end by transverse pins b b. This rail is further provided with asimilarlydisposed pin, a, which engages in a vertical slot, b, formed in a standard, A, fastened to the floor or otherwise. By this means therail has no endwise travel, but is permitted to rise and fall dependent upon the builder-shoes. Moreover, said rail is caused to bear firmly upon the builder-shoes by the superincumbent weight of the several component parts, which are mounted upon it.

The main drivingshaft is shown at D, upon which are affixed, in the present instance, two sprocket-wheels, E F, which operate, respectively, two sprocket-wheels, G H, by aid of the belts c d,- but other means of transmitting motion may be adopted in lieu of the sprocketwheels herein shown. The wheel H (see Fig. 4) is journaled in a standard, e, laterally of the rail, and is furnished with a projecting stud, f, which engages the free end 9 of a species of bell-crank lever, I, pivoted in a standard, J. The tail end h of this lever is fitted with an adjustable chain, t, attached to an arm, 9', car rying a pawl, which operates a ratchet-wheel, K, rigidly secured upon one end of a screwthreaded shaft, L, mounted in the casting B. The adjustment of chain 73 is effected by a bolt, 13, to which the upper end of the said chain is attached, said bolt being movable backward or forward in a slot, h, of the end it of said lever, and loosened or tightened as occasion may require. The opposite end of said shaft engages one of the builder-shoes, and upon rotation of the main shaft and the interconnecting mechanism said builder-shoes are thrust en dwise, (see arrow 2,) permitting the rail to drop, and thus alters the position of the guiderod 1, which moves longitudinally of the bobbin or cop in process of winding The adjustment of the connecting chain or link 17 upon the tail end of the lever produces more or less movement of the pawl on the ratchet-wheel, and the travel of'the buildershoes is thereby increased or diminished within a given unit of time to accommodate varying sizes of yarn or thread in process of winding.

The sprocket-wheel G, before mentioned, is journalcd and mounted on the rail 0, and is actuated continuously by the belt 0 to the wheel it on the main shaft. This wheel coopcrates with an oscillating lever, M, composed of two parts, Z w, adjustably connected by means of a slot, hr, in one of said parts, and a bolt, in, passing through it. The pivotal end of said lever is fixed to the rail by an ear or bracket, while its free end rests upon and is wiped by two zuiti-friction rollers, a, secured laterally of the wheel G. Said rollers are located diametrically of each other and alternately lift the free end of said taller-arm lever M, which causes the faller-arm N, with which it is movably united, to operate and rock the suspcnsory rod 0 and guide-wire 1. In lieu of said rollers a a, a cam-plate, a, (see Fig. 5,) may be secured to the wheel G, the shape of the cam to be such and to so operate the guide -wire that the thread shall move with a continuously-varyiug speed lengthwise of the bobbin, the speed of the traverse increasing from the head to the end of the bobbin, while the speed is just the reverse when the downward or retreat traverse is produced. Said upward travel of the guide-wire is created by the spring 0', secured at one end upon the suspcnsory rod and at the other to the frame in which the bobbins are mounted. Said spring is permitted to move the guide-wire only as the other component operating parts change their relative positions dependent upon the speed of the machine. In the use of a cam-plate the antifrictiou roller is then placed in the lever M. (See Fig. 5.)

The faller-arm N is composed of a curved link, 1), rigid upon the snspensory rod 0, and further pivoted to a straight arm, (1, adj ustable in length, the said arm q consisting of two sections, one of which has a longitudinal slot, q, through which bolts q q" pass to effect the adjustment. Thelower ext remity ofsaid fallerarm is movably connected with its oscillating lever M by the anti-friction rollersr 1-, which are placed one on each side thereof. Movement of this lever M causes movement of the taller-arm, and rocking motion is imparted thereby to the suspensory rod. Secured at intervals along the iatterare set a series of arms, a, which uphold the guide-wire P, by which the thread Z, passing thereunder, is caused to traverse longitudinally along the bobbin in operation. A spindle carrying a bobbin is shown at Q as mounted in a frame of the ordinary construction, and each bobbin is rapidly rotated in the manner now usually prac- 7 l ticed; hence it will be unnecessary to describe or show said actuating mechanism.

The parts above described, the stationary rail adapted to move vertically, induced by the endwise travel of the builder-shoes actuated by their feed mechanism, together with the oscillating faller-arm lever operated by the continuously-rotary wheel G, with its camplate 1), serve to produce two results in the act of building a bobbin: First, the fall or vertical drop of the rail by the movement of the lmilder-shoes serves to change the position of the guidewire P lengthwise of the bobbin, gradually lifting said wire, and hence serves to change the place where the thread passes about the bobbin at each traverse; secondly, the movement of the cam-plate, which oscillates the falter-arm lever and rocks the fallerarm and suspensory rod, causes the proper length of traverse of the guide-wire along the bobbin. Thus it is manifest that so long as the free end of the taller-arm remains in the same place upon its actuating lever the oscillations of the latter will produce equal traverses of the thread upon the bobbin as thelatter revolves; but as the rail drops, owing to the feed movement of the builder-shoes, the guide-wire is moved lengthwise of and upwardly 0n the bobbin, and the traverses cause the thread to be laid upon said bobbin according as the shape of the latter has been determined, this being uniform and exact for all the bobbins made simultaneously by the machine with a certain adjustment of the parts.

To change the length of the traverses and cause them to automatically vary, as is required to complete the proper shape of the bobbin, I have located at one side of the machine, in proximity to the foot of the fallerarm, a standard, R, with two upright supports, a u, in which is disposed a sliding rod, if, one end of the latter being furnished with a guide-head, S. The lower end of this head terr'ninatesin an i ntcriorly-screw-tln'cadcd hub, which engages with and is actuated by a horizontal screw-shaft, T, also mounted in said standard R.

Longitudinally of the machine, and secured to one of the builder-shoes, by which endwise movement is imparted to it, is placed a straight bar, V, furnished with a toothed rack, w, engaging a toothed wheel, w, on the inner end of a short shaft, W, mounted in the standard It. The outer extremity of said shaft has a bevelgcar, 9 meshing with a pinion, 2, upon the screw-shaft T.

Endwisc movement of the builder-shoes (sec arrow 2) causes the barV to be advanced with it, and the rack w rotates the toothed wheel w, also the gears y z and the shaft T. totation of the latter thrusts the guide-head S against the free end of the taller-arm N, which is retained thereagainst by the spring 3. The lower free end of the fallerarm is thus impelled in the direction of arrow 3, and is thrust outwardly upon the oscillating lever M; but since the throw of the latter is the same (un- IIO less changed by adjustment) at all times during the operation of filling a bobbin'or series of bobbins the travel of the faller-arm is increased and its traverse lengthwise of the bobbin is greater. Furthermore, the length of the rack is such that it serves to operate the guide-head and faller-arm until the largest di ameter of the bobbin-bottom is obtained, when the rack is disengaged from the toothed wheel by the further advance of the bar V. Said toothed wheel then ceases to operate, the guidehead remains stationary, and the length of the traverses now continues of the same length. When the bobbins are filled, the machine is stopped, the movement'of the builder-shoes is reversed, and they are brought into the position shown in Fig. 1. This retreat movement of the builder-shoes again causes the rack to engage its toothed wheel, and all the operating parts are reverscly actuated, whereby the guide-hcad is restored to its first position, (see Fig. 1,) in readiness for the act of refilling empty bobbins. In said drawings, Fig. 1, the bobbin is represented as just starting to be filled, and the guard-wire is at its extreme upward throw, the traverse being very short to build up the cone, say on a paper shell or upon a bobbin formed without a cone-head. The cam or actuating plate on the wheel G now permits the faller-arm lever to drop to its lowest position or extreme downward oscillation.

The spindle-supporting devices hereinbefore described and shown are fixed.

\Vhat I desire to claim 'is 1. The combination, with the verticallyinovable rail, the spring'actnated reciprocating fallcr-arm, a lever, and movable rail for causing such reciprocation, of the guide-head which engages the free end of the faller-arm, the builder-shoes, and the rack-carrying bar, with its co-operating wheel screw-shaft and intervening gearing, substantially as herein specified.

2. In combination, the builder-shoes A, connecting-rod a, sprocket-wheels F H, connecting-band d, the bell-crank lever 1, operatingpawl j, screw-rod L, the chain i, ratchet-wheel K, the rail 0, movable in vertical planes and mounted upon the builder-shoes, and the guidewire, the faller-arm, spring a, the suspending devices for said guide-wire, the lever M, pivoted to said rail and movably connected to said faller-arm, the wheel G, carrying cams which act on said faller-arm, and mechanism for rotating said wheel, all operating substantially as described. Y

3. The combination, with a continuously-rotary spindle, a vertically-movable rail, means for actuating said rail, the oscillating lever and the continuously-rotary wheel carried by the rail, the cam face-plate, and the actuatingwheel E, of the spring-actuated suspensory rod 0, arms 8, affixed thereon, guide-wire P, and the faller-arm N, secured to the suspensory-rod with its free end connected with the actuating lever, all as and for purposes substantially as set forth.

4. The revoluble spindle, the guidewire adapted to traverse lengthwise thereof, the rocking suspensory rod and its actuating faller-arm N, and spring 3, combined with the guide-head S, operating screw-rod T, rail 0, lever M, means to actuate said lever, the builder-shoes, means to actuate them, shaft W, arms p and s, pinion a, gear '1, toothed wheel :0, rack w, and bar V, movable endwise and con trolled by the said builder-shoes, substantially as stated.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS J. MURDOGK.

Witnesses:

H. E. LODGE, E. K. BoYNToN. 

